Nature"The Wolf That Changed America"
In 1893, bounty hunter and naturalist Ernest Thompson Seton went to the untamed canyons of New Mexico to kill a renegade wolf called Lobo, leader of a band of cattle-killing wolves. The encounters between man and wolf changed the way American thought of its vanishing wilderness and led to the establishment of the national park system and the Boy Scout movement in America.G

2:00 am

Alan Alda in Scientific American Frontiers"Surgical Slimmers"
In spite of the risks, people are lining up to solve their weight problems in the operating room. And if the latest device - an implantable stomach "pacer" - works out, millions more will be taking the surgical way out. D

2:30 am

Alan Alda in Scientific American Frontiers"Cars That Think"
The fully automatic car may be down the road a ways, but cars that do your thinking for you are just around the corner - they watch out for hazards, they listen to you, they read your lips, they even know when you're distracted. D

3:00 am

NASA Sci Files"The Case of the Biological Biosphere"
One of the tree house detectives is about to take a trip to foreign shores and is both excited and concerned. This trip is the chance of a lifetime, and he doesn't want to get sick and miss it. Come help the detectives learn about the human body as they discover that no man, not even a kid, is an island.G

Democracy In America"Media: Inside Story"
This program explores the media as an integral part of American democracy, highlighting the scrutiny they impose on the performance of public officials, the interdependence of politics and the media, and the power the media wields in selecting the news. D

Connect with English"A Box of Memories/The Missing Car"
In the first segment, Rebecca and Kevin find a key to a safe deposit box containing family treasures and substantial amounts in savings and insurance which will reduce their financial worriesG

Clifford The Big Red Dog"Birdy Makes Three/Home Is Where The Fun Is"
And Birdy Makes Three - When Emily finds a baby bird, she decides to take care of it until it learns to fly. Clifford learns that even when she's busy with other things Emily never stops loving him. Home Is Where the Fun Is - First, Emily feels jealous that Jetta gets to go and see the amazing Titanic Tower in the exciting big city. D

7:00 am

Arthur"April 9th (Parts I & II)"
April 9th (Parts I and II) - April 9th begins like any normal day. until a fire destroys the teacher's lounge and forces Lakewood Elementary to close. This unexpected event finds the children dealing with a wide range of emotional reactions: Sue Ellen is devastated when her diary is ruined. D

7:30 am

Martha Speaks"Martha Sings/TD Makes The Band"
Martha Sings - Martha wakes up singing and not just because she's happy. She can't stop! TD Makes the Band - Everybody's singing about Shecky the Sea Lion and it's driving TD nuts!G

8:00 am

Curious George"The Inside Story/A Monkey, A Plan, A Canal"
George dreams that he and Gnocchi are chasing the germs that are giving him a cold out of his body.G

8:30 am

Cat in the Hat Knows A Lot About That!"No Night Today/Fun in the Sun"
No Night Today - Nick and Sally want to keep playing, but it's getting dark. Why does nighttime have to come? The Cat knows someone who can answer that question - Astronaut Audrey! With a trip to her International Space Station and a large model of the solar system, the kids learn that it's the earth's spinning near the sun that makes it night or day. Fun in the Sun - Phew it's hot! Too hot to play outside. D

9:00 am

Super Why!"Peter Rabbit"
Red wants to find the perfect present to show Grandma she cares, but she is absolutely stumped! The Super Readers pay a storybook visit to Peter Rabbit and chase after the mischievous little cottontail bunny, who's on the hunt for some delicious fresh vegetables for his Mama. The Super Readers must help Peter find what he's looking for before his big appetite for veggies lands him in hot water! Educational Objectives: To learn how to show someone you care, investigate the alphabet, practice spelling skills and use the power to read to change the story. D

9:30 am

Dinosaur Train"Night Train/Fossil Fred"
Night Train - Dad, Buddy and Tiny take a special ride on the Dinosaur Train at night, learning about animals that are active after dark, culminating at the Big Pond for a nature walk under the full moon. Fossil Fred - Buddy, Tiny and Don play "detective" and search around the Big Pond for fossils. The kids end up finding an entire skeleton of a Jurassic dinosaur. D

10:00 am

Sesame Street"Squirmadega Car Race"
Slimey is practicing for the Squirmadega Car Race. He zooms forward, backward, and around and around on the counter of Mr. Hopper's store. Elmo excitedly gets ready to watch Slimey in the worm car race. D

11:00 am

Daniel Tiger's Neighborhood"Something Special for Dad/I Love You, Mom"
Something Special for Dad - Daniel notices how happy Dad is to have received a letter from Grandpere. Daniel really loves Dad, so he decides to send him a letter that will make him glad too. He goes to the Post Office with Mom, where he learns how letters are sorted and mailed. D

11:30 am

Sid The Science Kid"The Big Cheese!"
While surfing the Internet on the computer with his Mom, Sid finds a funny picture showing that the moon is made of green, glowing, cheese! Sid thinks this is amazing, and when he goes to school, he relays his newfound moon information to his friends, who are equally enthralled. When they tell Susie what they learned, Susie explains something very important-not everything you find on the computer is true! And someone that really understands that notion is visiting today, it's Gabriela's Mom! Dr. Rosalinda Cordova is a marine biologist so she does lots of research on the computer, but it's not the only thing she uses. She tells the kids that when she does research, she reads books at the library, makes observations, asks experts, and looks at websites with good information. D

12:00 pm

WordWorld"Bear's Bed Sled/Sh-Sh-Shark!"
Bear's Bed Sled - Bear is excited about sledding on the first day of snow, but her plans change when she hurts her toe and is unable to ride her sled. It's up to her friends to come up with a solution that will let Bear stay in bed and go sledding at the same time. Sh-Sh-Shark! - Shark is misunderstood. D

12:30 pm

Caillou"Caillou Outdoors!"
Shoo, Shoo Bird, Fly Away - When birds keep eating the seeds in Mommy and Caillou's newly planted garden, they come up with the idea of making a scarecrow. It's fun picking out the clothes and drawing pictures for the face too. Caillou even imagines he's a scarecrow himself! When they are finished their scarecrow Rosie's noisy pie plates prove to be the final ingredient needed to scare away the birds! Caillou's Road Trip - One fine day the family is going on a car trip. D

1:00 pm

Barney & Friends"The Blame Game/Airplanes"
The Blame Game - Marcos accidentally breaks an art show project that Melanie has made. Afraid that she will be angry, he doesn't say anything, but then feels guilty. Barney helps him see that honesty and taking responsibility for what we do is always best. D

1:30 pm

Thomas & Friends"All Together Now"
Ol' Wheezy Wobbles - On Misty Island, Ol' Wheezy has stopped working. Thomas wants to help and says he can fix Ol' Wheezy. He puffs to the Dieselworks, and asks Den and Dart for help because two busy boilers are better than one. D

2:00 pm

Curious George"The Inside Story/A Monkey, A Plan, A Canal"
George dreams that he and Gnocchi are chasing the germs that are giving him a cold out of his body.G

2:30 pm

Martha Speaks"Martha Sings/TD Makes The Band"
Martha Sings - Martha wakes up singing and not just because she's happy. She can't stop! TD Makes the Band - Everybody's singing about Shecky the Sea Lion and it's driving TD nuts!G

3:00 pm

The Electric Company"The Wordball Is My Oyster"
Lisa gets a case of stage fright when she's cast as the lead in Hector's play. Can Lisa overcome her fears in time to save the play, or will she have to give her part to Annie?. D

3:30 pm

WordGirl"The Meaty Dimension/The Case of the Copied Mrs. Botsford"
THE MEATY DIMENSION - The Butcher discovers the portal where all of his meat is stored and concocts a plan to trap Huggy and WordGirl so that he can take over the city. Will WordGirl and Huggy be able to outsmart the butcher and get rid of his meat portal for good? Vocabulary Words: Portal, Overpower. THE CASE OF THE COPIED Mrs. BOTSFORD - LRW has made copies of all the important city officials and has sent them out into the city to do all of her dirty work. D

4:00 pm

Wild Kratts"Voyage of the Butterflier XT"
Using Aviva's newly invented Butterflier XT, the miniaturized Kratt Brothers embark on the most incredible insect voyage in the world - the Monarch butterfly's 2,000 mile migration.G

4:30 pm

Cyberchase"Raising The Bar"
The main Cybrary is under attack. Hacker, disguised as an exterminator called the Vermin Vexer, has released a mysterious cyberbug that is systematically destroying certain information - but Ms. Fileshare, the overworked Cybrarian, is too busy to notice. When Hacker uses bar graphs to confuse Ms. Fileshare, the kids create bar graphs of their own to counter his contentions. D

5:00 pm

Fetch! With Ruff Ruffman"When Home Is A House of Cards"
Ruff sends Sammy and Sam to the MSPCA to make a promotional video. Noel and Jay meet up with a famous card stacker to build a tower of cards. D

5:30 pm

Nightly Business Report
Apple is expected to debut its next generation iPhone tomorrow. It may be tech's next big thing, but its influence extends well beyond Apple. New York Correspondent Suzanne Pratt takes a look at the "Apple Economy. D

Joanna Lumley: Greek Odyssey"The Islands"
Joanna explores some of the 1,400 Greek islands that make up this maritime nation. She gets a lift on board a shipping magnate's yacht to Crete where she spends time with shepherds in the high, remote mountains of the island. On Kos, she explores the birth place of Hippocrates, the father of modern medicine, and ascends an active volcano on Nisyros. Part 3 of 4G

8:00 pm

Great Performances at the Met"Wagner's Ring Cycle - Das Rheingold"
The gods of Valhalla clash with underworld dwarves and giants in this opening opera of the cycle. Evil Alberich steals gold from the Rhine and uses it to forge a ring of unimaginable power. Wotan (Bryn Terfel), the king of the gods, uses magic to steal the ring but it is cursed, guaranteeing misery for whoever wears it. Unwilling to part with the ring, Wotan breaks a contract with the giants and sets a chain of events in motion that will end in his destruction. James Levine conducts. Sung in German with English subtitles.G